Southwire (By-the-Foot) 3/0 Black Stranded CU SIMpull THHN Wire 20507099 - The Home Depot
Ancor Tinned Copper Battery Cable 30 AWG 81mm Black Sold By The Foot 1180FT – Bridgeview Harbour Marina
3/0 AWG EPDM Welding Cable - CRIMPZONE
3/0 THHN/THWN-2 Building Wire – Cut to Length
Southwire 1000-ft 3/0-AWG Aluminum Stranded Black XHHW Wire (By-the-Roll) in the XHHW Wire department at Lowes.com
Heavy Duty Natural Flexible PVC or Neoprene Rubber Welding Cable 3/0 4/0 AWG with Black or Orange Color - China Welding Cable 3/0AWG, Welding Cable 4/ 0AWG | Made-in-China.com
3/0 AWG 19 strands XLP USE-2 Black
Battery Cable - Gauges from 6 through 4/0 - WiringProducts, Ltd. – Wiring Products
Pacer Yellow 3/0 AWG Battery Cable - Sold By The Foot - BOEMarine.com